02924Noxious Weed Control

NOXIOUS WEED CONTROL

PART 1 GENERAL

1.1SECTION INCLUDES

weeds.

1.2RELATED SECTIONS Not Used

1.3REFERENCES Not Used

1.4DEFINITIONS

which occurs generally between the last killing frost in the spring to the first killing frost in the fall.

1.5SUBMITTALS

herbicides, for review.

1.6WEED LISTS

to http://www.udot.utah.gov/go/standardsreferences

differ from the State List, see Table 1. Refer to http://www.udot.utah.gov/go/standardsreferences

Noxious Weed Control 2027 Standard Specification Last Revision: December 7, 2023

Table 1 Class 1A Common Name Scientific Name Common crupina Crupina vulgaris Small bugloss Anchusa arvensis Mediterranean sage Salvia aethiopis Spring millet Milium vernale Syrian beancaper Zygophyllum fabago Ventenata (North Africa grass) Ventenata dubia Plumeless thistle Carduus acanthoides Malta starthistle Centaurea melitensis

Class 1B Common Name Scientific Name African rue Peganum harmala Garlic mustard Alliaria petiolata Purple starthistle Centaurea calcitrapa Goatsrue Galega officinalis African mustard Brassica tournefortii Giant reed Arundo donax Japanese knotweed Polygonum cuspidatum Blueweed (Vipers bugloss) Echium vulgare Elongated mustard Brassica elongata Common St. Johnswort Hypericum perforatum Ox-eye daisy Chrysanthemum leucanthemum Cutleaf vipergrass Scorzonera laciniata

Class 2 Common Name Scientific Name Leafy spurge Euphorbia esula Medusahead Taeniatherum caput-medusae Rush skeletonweed Chondrilla juncea Spotted knapweed Centaurea maculosa Purple loosestrife Lythrum salicaria Squarrose knapweed Centaurea virgata

Noxious Weed Control 2027 Standard Specification Last Revision: December 7, 2023

Dyer’s woad Isatis tinctoria Yellow starthistle Centaurea solstitialis Yellow toadflax Linaria vulgaris Diffuse knapweed Centaurea diffusa Black Henbane Hyoscyamus niger Dalmation toadflax Linaria dalmatica

Class 3 Common Name Scientific Name Russian knapweed Centaurea repens Houndstounge Cynoglossum officinale Perennial pepperweed (Tall whitetop) Lepidium latifolium Phragmites (Common reed) Phragmites australis ssp. Tamarisk (Saltcedar) Tamarix ramosissima Hoary cress (Whitetop) Cardaria draba Canada thistle Cirsium arvense Poison hemlock Conium maculatum Musk thistle Carduus nutans Quackgrass Elytrigia repens Jointed goatgrass Aegilops cylindrica Bermudagrass * Cynodon dactylon including but not limited to Perennial Sorghum spp. Johnson Grass (Sorghum halepense) and Sorghum almum (Sorghum almum) Scotch thistle (Cotton thistle) Onopordum acanthium Field bindweed (Wild Morning-glory) Convolvulus ssp. Puncturevine (Goathead) Tribulus terrestris * Bermudagrass (Cynodon dactylon) shall not be a noxious weed in Washington County and shall not be subject to provisions of the Utah Noxious Weed Law within the boundaries of that county. It shall be a noxious weed throughout all other areas of the State of Utah and shall be subject to the laws therein.

Class 4 Common Name Scientific Name Cogongrass (Japanese blood grass) Imperata cylindrica Myrtle spurge Euphorbia myrsinites Dames Rocket Hesperis matronalis

Noxious Weed Control 2027 Standard Specification Last Revision: December 7, 2023

Scotch broom Cytisus scoparius Russian olive Elaeagnus angustifolia

Table 2 Common Name Scientific Name Kochia/Burningbush Bassia or Kochia scoparia Russian thistle Salsola ssp.

PART 2 PRODUCTS

2.1HERBICIDE

noxious and invasive weeds, commercially available, and EPA registered:

weeds in standing or running water.

authorized by the Engineer.

effectiveness of herbicide treatment.

PART 3 EXECUTION

3.1NOXIOUS AND INVASIVE WEED CONTROL

project limits each growing season the project is in active construction.

and invasive weeds.

disturbing activities.

plants are actively growing and before bloom and seed stage of growth.

during the bloom and seed stage of growth.

END OF SECTION

Noxious Weed Control 2027 Standard Specification Last Revision: December 7, 2023